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Activity
TeachEngineering

Teach Engineering: Estimating the Storage Capacity of a Cd/dvd

For Teachers 11th - 12th
Students estimate the storage capacity of CDs and DVDs by assessing diffraction patterns of green and red laser beams.
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Handout
Wikimedia

Wikipedia: Video

For Students 9th - 10th
Wikipedia provides a simple definition of the term, "Video," including many hyperlinked words and an external link.